Fortune favors the bold, and in the case of these particular bards, their unusual luck makes them quite bold indeed. While a natural affinity towards luck is certainly useful, the College of Fortune teaches its students special magic that warps the strings of fate. A bard of fortune is truly too lucky to fail, and they are able to turn the tides of any situation. It just takes a little luck.

Fortune's Reward

At 3rd level, when luck befalls you, as it so often does, you are able to mold that blessing into a boon for your allies. Whenever you or an ally within 30 feet of you rolls a Critical Success (typically a 20 on the d20) for an attack roll, an ability check, or a saving throw, you can use your reaction to regain one expended use of your Bardic Inspiration feature.

Even the Odds

At 3rd level, a Bard of Fortune is not only remarkably lucky, but their talents also prevent them from ever being caught as unlucky. As a reaction, if you or another creature you can see within 30 feet of you has advantage or disadvantage on roll, you may expend one use of your Bardic Inspiration to have yourself or the creature take the average of the two rolls instead. You make this choice after you see the two rolls, but before the DM says whether the rolls were a failure or a success.

Lucky Trinket

You have always had a good luck charm, and now at 6th level, you can channel your magic through it for bolstered good luck. You now have a Lucky Trinket that you carry with you. You may choose its appearance, which is purely aesthetic. 

The Trinket can serve as a Spell Focus, and you may also hand it off to another person to hold, as an action. While holding the Lucky Trinket, a creature will gain a Critical Success on not only a natural 20, but also by rolling a natural 7.

Additionally, a creature holding the Lucky Trinket may choose to turn any roll of a d20 into a 13. The creature makes this choice after they see the roll, but before the DM says whether the roll was a failure or a success. The Lucky Trinket can change the result of a roll this way a number of times equal to your Proficiency bonus per long rest.

Fatebender

At 14th level, your luck is beyond coincidental. Your luck is supreme. You can bend fate to your will, and alter chance on a whim. As a reaction, before you or another creature makes a roll, you may spend and roll an Inspiration Die.

You grant yourself or a creature you can see within 30 feet of you advantage or disadvantage on their next roll. If the creature already has advantage, the number you rolled from your Inspiration Die is added to the roll.

If the creature already has disadvantage, the creature must make a Charisma save against your spell casting DC. On a fail, they subtract the number rolled from your Inspiration Die from their roll.